Ponnai
| Ponnai | |
|---|---|
| Coordinates: 13°8′0″N 79°16′0″E / 13.13333°N 79.26667°E | |
| Country | India | 
| State | Tamil Nadu | 
| District | Vellore | 
| Elevation | 243 m (797 ft) | 
| Population | |
|  • Total | 15,850 | 
| Languages | |
| • Official | Tamil | 
| Time zone | UTC+5:30 (IST) | 
| PIN | 632514 | 
| Vehicle registration | TN - 23 | 
| Nearest city | Vellore | 
| Lok Sabha constituency | Arakkonam | 
| Website | ponnai.com | 
Ponnai is a Town panchayat which is located in the Vellore District within the state of Tamil Nadu. Ponnai Panchayat is composed of 18 villages, with Ponnai serving as the head town.